L'image de Magento 2.1 ne se télécharge pas sous forme d'édition

Je travaille sur le formulaire magento 2.1 . L'image est téléchargée avec succès lorsque j'ajoute un nouveau champ. Cependant, lorsque je modifie un champ de la grille, le téléchargeur de fichiers ne s'affiche pas sur la page. Lorsque j'inspecte la page d'édition, il affiche l'erreur suivante

UnCaught TypeError: value.map n'est pas une fonction dans file-uploader.js: 69

<field name="image">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="dataType" xsi:type="string">string</item>
                <item name="source" xsi:type="string">faqs</item>
                <item name="label" xsi:type="string" translate="true">Topic Image</item>
                <item name="visible" xsi:type="boolean">true</item>
                <item name="formElement" xsi:type="string">fileUploader</item>
                <item name="elementTmpl" xsi:type="string">ui/form/element/uploader/uploader</item> 
               <item name="previewTmpl" xsi:type="string">Magento_Catalog/image-preview</item> 
               <item name="dataScope" xsi:type="string">image</item>
                <item name="required" xsi:type="boolean">false</item>
                <item name="sortOrder" xsi:type="number">13</item>
                <item name="uploaderConfig" xsi:type="array">
                    <item name="url" xsi:type="url" path="faqs/topic_image/upload"/>
                </item>
            </item>
        </argument>
    </field>

Dans \ app \ code \ Spacename \ Moduelname \ etc \ di.xml

<type name="Spacename\modulename\Controller\Adminhtml\Topic\Image\Upload">
<arguments>
    <argument name="imageUploader" xsi:type="object">Magento\Catalog\CategoryImageUpload</argument>
</arguments>
</type>


<virtualType name="Magento\Catalog\CategoryImageUpload" type="spacename\modulename\Model\ImageUploader">
<arguments>
    <argument name="baseTmpPath" xsi:type="string">faqs</argument>
    <argument name="basePath" xsi:type="string">faqs</argument>
    <argument name="allowedExtensions" xsi:type="array">
        <item name="jpg" xsi:type="string">jpg</item>
        <item name="jpeg" xsi:type="string">jpeg</item>
        <item name="gif" xsi:type="string">gif</item>
        <item name="png" xsi:type="string">png</item>
    </argument>
</arguments>

Dans l'application du contrôleur \ code \ Spacename \ Moduelname \ Controller \ Adminhtml \ Topic \ Image upload.php

    class Upload extends \Magento\Backend\App\Action
{
    /**
     * Image uploader
     *
     * @var \Magento\Catalog\Model\ImageUploader
     */
    protected $baseTmpPath;
    protected $imageUploader;

    /**
     * Upload constructor.
     *
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Catalog\Model\ImageUploader $imageUploader
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \spacename\modulename\Model\ImageUploader $imageUploader
    ) {
        parent::__construct($context);
        $this->imageUploader = $imageUploader;
    }

    /**
     * Check admin permissions for this controller
     *
     * @return boolean
     */
    protected function _isAllowed()
    {
        return $this->_authorization->isAllowed('spacename_Modulename::entity');
    }

    /**
     * Upload file controller action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {

        try {
            $result = $this->imageUploader->saveFileToTmpDir('image');

            $result['cookie'] = [
                'name' => $this->_getSession()->getName(),
                'value' => $this->_getSession()->getSessionId(),
                'lifetime' => $this->_getSession()->getCookieLifetime(),
                'path' => $this->_getSession()->getCookiePath(),
                'domain' => $this->_getSession()->getCookieDomain(),
            ];
        } catch (\Exception $e) {
            $result = ['error' => $e->getMessage(), 'errorcode' => $e->getCode()];
        }
        return $this->resultFactory->create(ResultFactory::TYPE_JSON)->setData($result);
    }
}

et dans model \ code \ Spacename \ Moduelname \ Model \ ImageUploader.php

    <?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace spacename\modulename\Model;

/**
 * Catalog image uploader
 */
class ImageUploader
{
    /**
     * Core file storage database
     *
     * @var \Magento\MediaStorage\Helper\File\Storage\Database
     */
    protected $coreFileStorageDatabase;

    /**
     * Media directory object (writable).
     *
     * @var \Magento\Framework\Filesystem\Directory\WriteInterface
     */
    protected $mediaDirectory;

    /**
     * Uploader factory
     *
     * @var \Magento\MediaStorage\Model\File\UploaderFactory
     */
    private $uploaderFactory;

    /**
     * Store manager
     *
     * @var \Magento\Store\Model\StoreManagerInterface
     */
    protected $storeManager;

    /**
     * @var \Psr\Log\LoggerInterface
     */
    protected $logger;

    /**
     * Base tmp path
     *
     * @var string
     */
    protected $baseTmpPath;

    /**
     * Base path
     *
     * @var string
     */
    protected $basePath;

    /**
     * Allowed extensions
     *
     * @var string
     */
    protected $allowedExtensions;

    /**
     * ImageUploader constructor
     *
     * @param \Magento\MediaStorage\Helper\File\Storage\Database $coreFileStorageDatabase
     * @param \Magento\Framework\Filesystem $filesystem
     * @param \Magento\MediaStorage\Model\File\UploaderFactory $uploaderFactory
     * @param \Magento\Store\Model\StoreManagerInterface $storeManager
     * @param \Psr\Log\LoggerInterface $logger
     * @param string $baseTmpPath
     * @param string $basePath
     * @param string[] $allowedExtensions
     */
    public function __construct(
        \Magento\MediaStorage\Helper\File\Storage\Database $coreFileStorageDatabase,
        \Magento\Framework\Filesystem $filesystem,
        \Magento\MediaStorage\Model\File\UploaderFactory $uploaderFactory,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Psr\Log\LoggerInterface $logger,
        $baseTmpPath,
        $basePath,
        $allowedExtensions
    ) {
        $this->coreFileStorageDatabase = $coreFileStorageDatabase;
        $this->mediaDirectory = $filesystem->getDirectoryWrite(\Magento\Framework\App\Filesystem\DirectoryList::MEDIA);
        $this->uploaderFactory = $uploaderFactory;
        $this->storeManager = $storeManager;
        $this->logger = $logger;
        $this->baseTmpPath = $baseTmpPath;
        $this->basePath = $basePath;
        $this->allowedExtensions = $allowedExtensions;
    }

    /**
     * Set base tmp path
     *
     * @param string $baseTmpPath
     *
     * @return void
     */
    public function setBaseTmpPath($baseTmpPath)
    {
        $this->baseTmpPath = $baseTmpPath;
    }

    /**
     * Set base path
     *
     * @param string $basePath
     *
     * @return void
     */
    public function setBasePath($basePath)
    {
        $this->basePath = $basePath;
    }

    /**
     * Set allowed extensions
     *
     * @param string[] $allowedExtensions
     *
     * @return void
     */
    public function setAllowedExtensions($allowedExtensions)
    {
        $this->allowedExtensions = $allowedExtensions;
    }

    /**
     * Retrieve base tmp path
     *
     * @return string
     */
    public function getBaseTmpPath()
    {

        return $this->baseTmpPath;
    }

    /**
     * Retrieve base path
     *
     * @return string
     */
    public function getBasePath()
    {
        return $this->basePath;
    }

    /**
     * Retrieve base path
     *
     * @return string[]
     */
    public function getAllowedExtensions()
    {
        return $this->allowedExtensions;
    }

    /**
     * Retrieve path
     *
     * @param string $path
     * @param string $imageName
     *
     * @return string
     */
    public function getFilePath($path, $imageName)
    {
        return rtrim($path, '/') . '/' . ltrim($imageName, '/');
    }

    /**
     * Checking file for moving and move it
     *
     * @param string $imageName
     *
     * @return string
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    public function moveFileFromTmp($imageName)
    {
        $baseTmpPath = $this->getBaseTmpPath();
        $basePath = $this->getBasePath();


        $baseImagePath = $this->getFilePath($basePath, $imageName);
        $baseTmpImagePath = $this->getFilePath($baseTmpPath, $imageName);

        try {
            $this->coreFileStorageDatabase->copyFile(
                $baseTmpImagePath,
                $baseImagePath
            );
            $this->mediaDirectory->renameFile(
                $baseTmpImagePath,
                $baseImagePath
            );
        } catch (\Exception $e) {
            throw new \Magento\Framework\Exception\LocalizedException(
                __('Something went wrong while saving the file(s).')
            );
        }

        return $imageName;
    }

    /**
     * Checking file for save and save it to tmp dir
     *
     * @param string $fileId
     *
     * @return string[]
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    public function saveFileToTmpDir($fileId)
    {
        $baseTmpPath = $this->getBaseTmpPath();

        $uploader = $this->uploaderFactory->create(['fileId' => $fileId]);
        $uploader->setAllowedExtensions($this->getAllowedExtensions());
        $uploader->setAllowRenameFiles(true);

        $result = $uploader->save($this->mediaDirectory->getAbsolutePath($baseTmpPath));

        if (!$result) {
            throw new \Magento\Framework\Exception\LocalizedException(
                __('File can not be saved to the destination folder.')
            );
        }

        /**
         * Workaround for prototype 1.7 methods "isJSON", "evalJSON" on Windows OS
         */
        $result['tmp_name'] = str_replace('\\', '/', $result['tmp_name']);
        $result['path'] = str_replace('\\', '/', $result['path']);
        $result['url'] = $this->storeManager
                ->getStore()
                ->getBaseUrl(
                    \Magento\Framework\UrlInterface::URL_TYPE_MEDIA
                ) . $this->getFilePath($baseTmpPath, $result['file']);
        $result['name'] = $result['file'];

        if (isset($result['file'])) {
            try {
                $relativePath = rtrim($baseTmpPath, '/') . '/' . ltrim($result['file'], '/');
                $this->coreFileStorageDatabase->saveFile($relativePath);
            } catch (\Exception $e) {
                $this->logger->critical($e);
                throw new \Magento\Framework\Exception\LocalizedException(
                    __('Something went wrong while saving the file(s).')
                );
            }
        }

        return $result;
    }
}

vous devez passer passer tableau d'images qui contiennent l'image url,name

pour le passer au composant ui, vous pouvez utiliser dataprovider

<argument name="class" xsi:type="string">Namespace\Modulen\Model\Modelname\DataProvider</argument>

passez le tableau comme ci-dessous.

           $categoryData['image'][0]['name'] = $category->getData('image');
           $categoryData['image'][0]['url'] = $category->getImageUrl();

pour la référence, vous pouvez regarder

fournisseur \ magento \ Magento_Catalog \ Model \ Category \ DataProvider.php

Exemple complet

Comme indiqué par Qaisar, l'idée est d'utiliser le fournisseur de données pour ajouter ces informations aux données.

Donc, dans votre formulaire ui_component, vous devez d'abord spécifier une source de données:

<dataSource name="faqs_form_data_source">
    <argument name="dataProvider" xsi:type="configurableObject">
        <argument name="class" xsi:type="string">Spacename\Modulename\Model\DataProvider</argument>
        <argument name="name" xsi:type="string">faqs_form_data_source</argument>
        <argument name="primaryFieldName" xsi:type="string">entity_id</argument>
        <argument name="requestFieldName" xsi:type="string">id</argument>
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="submit_url" xsi:type="url" path="faqs/topic_image/save"/>
                <item name="validate_url" xsi:type="url" path="faqs/topic_image/validate"/>
            </item>
        </argument>
    </argument>
    <argument name="data" xsi:type="array">
        <item name="js_config" xsi:type="array">
            <item name="component" xsi:type="string">Magento_Ui/js/form/provider</item>
        </item>
    </argument>
</dataSource>

C'est donc à titre d'exemple que vous devrez peut-être adapter ce code à vos besoins.

En plus de cela, toujours dans votre fichier xml de composant ui, vous devez spécifier la source de données dans le nœud d'argument de données en ajoutant:

    <item name="js_config" xsi:type="array">
        <item name="provider" xsi:type="string">faqs_form.faqs_form_data_source</item>
        <item name="deps" xsi:type="string">faqs_form.faqs_form_data_source</item>
    </item>

Ensuite, vous devez créer le fournisseur de données Spacename\Modulename\Model\DataProvider.

Il est difficile de vous donner un échantillon de ce fichier car cela dépendra de vos besoins, mais la partie critique consiste à ajouter l'URL et le nom de l'image à vos données.

Pour ce faire, vous devez mettre à jour la getDataméthode:

public function getData()
{
    if (isset($this->loadedData)) {
        return $this->loadedData;
    }
    $faq = $this->getCurrentFaq();
    if ($faq) {
        $faqData = $faq->getData();
        if (isset($faqData['image'])) {
            unset($faqData['image']);
            $faqData['image'][0]['name'] = $faqData->getData('image');
            $faqData['image'][0]['url'] = $faqData->getImageUrl();
        }
        $this->loadedData[$faq->getId()] = $faqData;
    }
    return $this->loadedData;
}

Vous pouvez affiner le code de travail complet ci-dessous. Veuillez le vérifier de votre côté.

application / code / fournisseur / nom de module / registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register
(\Magento\Framework\Component\ComponentRegistrar::MODULE,'Vendor_modulename',__DIR__);

application / code / fournisseur / nom de module / etc / module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
    <module name="vendor_modulename" setup_version="1.0.3" active="true">
    </module>
</config>

application / code / fournisseur / nom de module / etc / adminhtml / routes.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
    <router id="admin">
        <route id="faqs" frontName="faqs">
            <module name="vendor_modulename" before="Magento_Backend" />
        </route>
    </router>
</config>

application / code / fournisseur / nom de module / etc / di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Catalog\Model\ImageUploader" type="vendor\modulename\Model\ImageUploader" />
    <type name="vendor\modulename\Controller\Adminhtml\Topic\Image\Upload">
        <arguments>
            <argument name="imageUploader" xsi:type="object">Magento\Catalog\CategoryImageUploadFaqs</argument>
        </arguments>
    </type>
    <virtualType name="Magento\Catalog\CategoryImageUploadFaqs" type="vendor\modulename\Model\ImageUploader">
        <arguments>
            <argument name="baseTmpPath" xsi:type="string">catalog/tmp/category</argument>
            <argument name="basePath" xsi:type="string">catalog/category</argument>
            <argument name="allowedExtensions" xsi:type="array">
                <item name="jpg" xsi:type="string">jpg</item>
                <item name="jpeg" xsi:type="string">jpeg</item>
                <item name="gif" xsi:type="string">gif</item>
                <item name="png" xsi:type="string">png</item>
            </argument>
        </arguments>
    </virtualType>
</config>

application / code / fournisseur / nom de module / Contrôleur / Adminhtml / Sujet / Image / Upload.php

<?php
namespace vendor\modulename\Controller\Adminhtml\Topic\Image;

use Magento\Framework\Controller\ResultFactory;

class Upload extends \Magento\Backend\App\Action
{
    /**
     * Image uploader
     *
     * @var \Magento\Catalog\Model\ImageUploader
     */
    protected $baseTmpPath;
    protected $imageUploader;

    /**
     * Upload constructor.
     *
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Catalog\Model\ImageUploader $imageUploader
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \vendor\modulename\Model\ImageUploader $imageUploader
    ) {
        parent::__construct($context);
        $this->imageUploader = $imageUploader;
    }

    /**
     * Check admin permissions for this controller
     *
     * @return boolean
     */
    protected function _isAllowed()
    {
        return $this->_authorization->isAllowed('vendor_modulename::entity');
    }

    /**
     * Upload file controller action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {

        try {
            $result = $this->imageUploader->saveFileToTmpDir('image');

            $result['cookie'] = [
                'name' => $this->_getSession()->getName(),
                'value' => $this->_getSession()->getSessionId(),
                'lifetime' => $this->_getSession()->getCookieLifetime(),
                'path' => $this->_getSession()->getCookiePath(),
                'domain' => $this->_getSession()->getCookieDomain(),
            ];
        } catch (\Exception $e) {
            $result = ['error' => $e->getMessage(), 'errorcode' => $e->getCode()];
        }
        return $this->resultFactory->create(ResultFactory::TYPE_JSON)->setData($result);
    }
}

app / code / fournisseur / nom de module / Model / ImageUploader.php

<?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace vendor\modulename\Model;
//echo "sdfsdf";exit;
/**
 * Catalog image uploader
 */
class ImageUploader 
{
    /**
     * Core file storage database
     *
     * @var \Magento\MediaStorage\Helper\File\Storage\Database
     */
    protected $coreFileStorageDatabase;

    /**
     * Media directory object (writable).
     *
     * @var \Magento\Framework\Filesystem\Directory\WriteInterface
     */
    protected $mediaDirectory;

    /**
     * Uploader factory
     *
     * @var \Magento\MediaStorage\Model\File\UploaderFactory
     */
    private $uploaderFactory;

    /**
     * Store manager
     *
     * @var \Magento\Store\Model\StoreManagerInterface
     */
    protected $storeManager;

    /**
     * @var \Psr\Log\LoggerInterface
     */
    protected $logger;

    /**
     * Base tmp path
     *
     * @var string
     */
    protected $baseTmpPath;

    /**
     * Base path
     *
     * @var string
     */
    protected $basePath;

    /**
     * Allowed extensions
     *
     * @var string
     */
    protected $allowedExtensions;

    /**
     * ImageUploader constructor
     *
     * @param \Magento\MediaStorage\Helper\File\Storage\Database $coreFileStorageDatabase
     * @param \Magento\Framework\Filesystem $filesystem
     * @param \Magento\MediaStorage\Model\File\UploaderFactory $uploaderFactory
     * @param \Magento\Store\Model\StoreManagerInterface $storeManager
     * @param \Psr\Log\LoggerInterface $logger
     * @param string $baseTmpPath
     * @param string $basePath
     * @param string[] $allowedExtensions
     */
    public function __construct(
        \Magento\MediaStorage\Helper\File\Storage\Database $coreFileStorageDatabase,
        \Magento\Framework\Filesystem $filesystem,
        \Magento\MediaStorage\Model\File\UploaderFactory $uploaderFactory,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Psr\Log\LoggerInterface $logger,
        $baseTmpPath,
        $basePath,
        $allowedExtensions
    ) {
        $this->coreFileStorageDatabase = $coreFileStorageDatabase;
        $this->mediaDirectory = $filesystem->getDirectoryWrite(\Magento\Framework\App\Filesystem\DirectoryList::MEDIA);
        $this->uploaderFactory = $uploaderFactory;
        $this->storeManager = $storeManager;
        $this->logger = $logger;
        $this->baseTmpPath = $baseTmpPath;
        $this->basePath = $basePath;
        $this->allowedExtensions = $allowedExtensions;
    }

    /**
     * Set base tmp path
     *
     * @param string $baseTmpPath
     *
     * @return void
     */
    public function setBaseTmpPath($baseTmpPath)
    {
        $this->baseTmpPath = $baseTmpPath;
    }

    /**
     * Set base path
     *
     * @param string $basePath
     *
     * @return void
     */
    public function setBasePath($basePath)
    {
        $this->basePath = $basePath;
    }

    /**
     * Set allowed extensions
     *
     * @param string[] $allowedExtensions
     *
     * @return void
     */
    public function setAllowedExtensions($allowedExtensions)
    {
        $this->allowedExtensions = $allowedExtensions;
    }

    /**
     * Retrieve base tmp path
     *
     * @return string
     */
    public function getBaseTmpPath()
    {

        return $this->baseTmpPath;
    }

    /**
     * Retrieve base path
     *
     * @return string
     */
    public function getBasePath()
    {
        return $this->basePath;
    }

    /**
     * Retrieve base path
     *
     * @return string[]
     */
    public function getAllowedExtensions()
    {
        return $this->allowedExtensions;
    }

    /**
     * Retrieve path
     *
     * @param string $path
     * @param string $imageName
     *
     * @return string
     */
    public function getFilePath($path, $imageName)
    {
        return rtrim($path, '/') . '/' . ltrim($imageName, '/');
    }

    /**
     * Checking file for moving and move it
     *
     * @param string $imageName
     *
     * @return string
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    public function moveFileFromTmp($imageName)
    {
        $baseTmpPath = $this->getBaseTmpPath();
        $basePath = $this->getBasePath();


        $baseImagePath = $this->getFilePath($basePath, $imageName);
        $baseTmpImagePath = $this->getFilePath($baseTmpPath, $imageName);

        try {
            $this->coreFileStorageDatabase->copyFile(
                $baseTmpImagePath,
                $baseImagePath
            );
            $this->mediaDirectory->renameFile(
                $baseTmpImagePath,
                $baseImagePath
            );
        } catch (\Exception $e) {
            throw new \Magento\Framework\Exception\LocalizedException(
                __('Something went wrong while saving the file(s).')
            );
        }

        return $imageName;
    }

    /**
     * Checking file for save and save it to tmp dir
     *
     * @param string $fileId
     *
     * @return string[]
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    public function saveFileToTmpDir($fileId)
    {
        $baseTmpPath = $this->getBaseTmpPath();

        $uploader = $this->uploaderFactory->create(['fileId' => $fileId]);
        $uploader->setAllowedExtensions($this->getAllowedExtensions());
        $uploader->setAllowRenameFiles(true);

        $result = $uploader->save($this->mediaDirectory->getAbsolutePath($baseTmpPath));

        if (!$result) {
            throw new \Magento\Framework\Exception\LocalizedException(
                __('File can not be saved to the destination folder.')
            );
        }

        /**
         * Workaround for prototype 1.7 methods "isJSON", "evalJSON" on Windows OS
         */
        $result['tmp_name'] = str_replace('\\', '/', $result['tmp_name']);
        $result['path'] = str_replace('\\', '/', $result['path']);
        $result['url'] = $this->storeManager
                ->getStore()
                ->getBaseUrl(
                    \Magento\Framework\UrlInterface::URL_TYPE_MEDIA
                ) . $this->getFilePath($baseTmpPath, $result['file']);
        $result['name'] = $result['file'];

        if (isset($result['file'])) {
            try {
                $relativePath = rtrim($baseTmpPath, '/') . '/' . ltrim($result['file'], '/');
                $this->coreFileStorageDatabase->saveFile($relativePath);
            } catch (\Exception $e) {
                $this->logger->critical($e);
                throw new \Magento\Framework\Exception\LocalizedException(
                    __('Something went wrong while saving the file(s).')
                );
            }
        }

        return $result;
    }
}

Faites-moi savoir si vous avez des questions / préoccupations ci-dessus.